from pydantic import BaseModel
from typing import Optional

class WechatLogin(BaseModel):
    """微信登录请求"""
    code: str
    referral_code: Optional[str] = None

class Token(BaseModel):
    """令牌响应"""
    access_token: str
    token_type: str = "bearer"
    
class LoginResponse(Token):
    """登录响应"""
    is_new_user: bool  # 是否为新用户
    openid: str